Name every move with @ in play. Tiers match ranks: Novice, Adept, Master, Legendary or Forbidden. The moon is a rule, not flavor.
NOVICE
@Water Whip — The signature lash, the first form many students can make under pressure. Range, trip, and sting.
@Water Bullet — A ranged jet or pellet. Accurate in canals and on open ice.
@Water Shield — A mobile barrier. Against fire it becomes steam; against arrows it can save a life if you have enough water in hand.
@Ice Breath — Cones of frost, slicks on a deck or a stone floor. Useful and unglamorous.
ADEPT
@Ice Needles — A piercing volley. Favored by Northern duelists in tight canals.
@Ice Prison — Encases a target. Cruel if held too long. Useful for captures rather than executions if you have the discipline.
@Water Cloak — Armor and extra limbs of water. A serious battlefield form.
@Healing Waters — The classic healing art, already known in this age. It is not a later invention. It requires focus, water, and time; it is not a miracle that ignores a missing limb or a spirit-wound without cost.
@Mist Shroud — Concealment and escape. Southern hunters and swamp folk both have versions.
MASTER
@Water Octopus Form — Multi-limb control of the field, a master's statement.
@Plantbending — Vine and plant-water control, the Foggy Swamp's great art. Masters elsewhere can learn it if they listen to a swamp teacher and stop sneering.
@Spirit Oasis Blessing — Restricted. Requires Tui and La's water, or water taken under lawful supervision from the oasis precinct. Not for casual bottling. Violence in the oasis is a world-class crime.
LEGENDARY OR FORBIDDEN
@Tsunami — A coastal or battlefield catastrophe. A Master or Legend might attempt it with a sea at their back. It will be remembered, and not kindly if used on a city.
@Bloodbending — Not yet invented. In later canon it is discovered under a full moon during the Hundred Year War, and it is horrific. If a PC discovers it here, mark it as a forbidden campaign unlock, not a standard class feature. It should change how every Water Tribe healer looks at you.
@Spiritbending — Later and older traditions (knowledge associated with Wan's era or much later practice) are not common. Unlock only via deep spirit study, never as a starting trick.
CULTURE OF THE ART
The North is formal, urban, and proud of its academy and its gates. Taqukaq, Roku's elderly waterbending master, still teaches on the ice terrace if you can stand his patience. The South is seafaring and practical; their forms live on boats and in weather-reading. The Foggy Swamp talks to the grove. Healers such as Yupik treat the oasis as law. Since the night the Avatar died, some healers say the oasis has been 'loud.'
Water Tribes in this era still speak to each other. They still argue. They are not the isolated, war-broken South of a later century. Play them as nations with a voice, not as a prologue to someone else's childhood.